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N0. 6II,I55. Patented Sept. 20, I898. W. H. TAYLOR.

LOCK AND LATCH.

(Application filed Oct. 4, 1897) (No Model.)

y a 9 3 r UNITED STATES PATENT FFICE.

\VARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF SAME PLACE.

LOCK AND LATCH.

SPECIFICATION forming art of Letters Patent No. 611,155, dated September 20, 1898.

Application filed October 4, 18 97.

To all whom it may concern.-

Be it known that I, WARREN H. TAYLOR, a citizen of the United States, and a resident of Stamford, in the county of Fail-field and State of Connecticut, have invented certain new and useful Improvements in Locks and Latches, of which the following is a specification.

My present invention relates to bolts for looks and latches, and has for its objects the improvement of construction and facilitating and cheapening manufacture of such parts of locks.

One feature of my said invention consists in providing the bolt with a laminated or built-up head formed from a number of laminae, plates, or sections conforming in outline to the horizontal section desired to be imparted to the head and presented edgewise to the strike or keeper.

A further feature consists in having one end of the tail of the bolt incorporated with the built-up head by inserting it between two of said laminae, plates, or sections, it being preferably secured there and the whole structure held together by means of pins or rivets passing through said laminae, plates, or sections.

A further feature consists in making the tail of some strong stiff metal, such as steel, and the laminae, plates, or sections forming the heads of a different metalsuch as brass, bronze, &c.and in so shaping the embodied end of the steel tail that it will correspond in outline with the laminze, plate,s,.or sections and when introduced into the middle of the built-up head its edge will receive impingement of the lock-strike and save wear upon the softer metal of the head.

A further feature in the construction of this bolt consists in making the tail of the bolt of a piece of flat metal arranged so that the greater portion of its length will lie flat with relation to the lock-case, while the end which carries the head is given a quartertwist relative to the said fiat-lying portion, whereby the greater dimension of the said end will be presented in the direction in which the strain is put upon it in use, and the said Serial No. 654,080. No' model.)

I end will lie parallel with and enter between the laminae, plates, or sections of the builtup head referred to.

In building upthe bolt-head in the manner described its vertical dimensions can be increased at will by simply adding the desired number of the uniformly-shaped laminae, plates, or sections.

This mode of constructing a bolt-head and of uniting'the tail thereto is shown in the drawings as applied to a latch-boltthat is, one having a beveled head. Obviously, however, the same construction is equally applicable to a dead-bolt-that is, one having a square or rectangular head.

The several features of my invention will be fully understood upon reference to the accompanying drawings, in which Figure 1 is an elevation of a lock-casing having applied thereto a latch-bolt embodying the several features of my invention, one plate of the casing being removed to disclose the interior mechanism. Fig. 2represe'nt-s a laminated or built-up latch-bolt and Fig. 3 is a perspective view of the segregated parts of the same, illustrating how the said bolt is constructed.

Referring to Fig. 1, 1 represents a lock-casing in which is mounted the latch-bolt 2 and the dead-bolt 3. The latch-bolt is controlled by a lock-hub 4, carrying the latch-operating arm 5, which enters between the upper ends of two separately-pivoted bell-crank levers 6 7, one of which also engages the tail 10 of the latch-bolt, while the lower ends of said levers intermesh, so as to impart simultaneous and equal movement of both levers and movement of the latch-bolt upon imparting movement to either lever from the lock-hub, as described and claimed in application for Letters Patent, Serial No. 645,854, filed by me July 24, 1897.

The dead-bolt is moved in opposite directions in the usual manner by a key which may be introduced through the keyhole 8 and which must be properly adapted to the tumblers 9.

In constructing bolts I provide a flat metal tail 10, having its outer end-formed with a quarter-turn l1 and with its end 12 conforming to the horizontal section of the finished horizontal section of said bolt, and these I apply to opposite sides of the end 12 until a head of suflicient vertical dimension is built up. Said parts are then secured together in any suitable manner-such, for instance, as by rivets 14. A bolt constructed in this manner embodies all the advantages heretofore referred to with reference to my invention.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. A lock-bolt having a head built up of laminae, plates or sections, conforming in outline to the horizontal section of the head, and lapped upon and secured to the tail of the bolt in a position which presents their edges to the strike; substantially as explained.

2. A lock-bolt comprising a tail, one end of which conforms substantially to the horizontal section of the head, and laminae, plates or sections also conforming to said section of the head, and built up on opposite sides of the end of the tail in sufficient numbers to provide a head of desired dimensions; as explained.

3. A lock-bolt constructed of a tail, and a head in which one end of the tail is inserted, said inserted end being presented edgewise in the head to form a friction-piece to receive wear imposed on the bolt by the lock-strike; substantially as set forth.

4:. A latch-bolt comprising a beveled head, and a tail having one end shaped to conform to the bevel of the head, and incorporated in said head with the beveled edge presented on the striking-surface of the head in position to receive the friction of a strike; substantially as herein explained.

5. In a look, a bolt having a tail lying fiat with the lock-casing, and with a quarterturned outer end presenting its greater dimension in the direction of strain imposed upon it in service, and a head fixed to said end; substantially as herein set forth.

WARREN H. TAYLOR.

lVitnesses:

GEO. E. WHITE, W. O. FELL. 

